0_0_37017214_14521\Main.java:3: 错误: 需要class, interface或enum
public Main{
^
0_0_37017214_14521\Main.java:4: 错误: 需要class, interface或enum
public static void main(String[] args) {
^
0_0_37017214_14521\Main.java:6: 错误: 需要class, interface或enum
Scanner scanner=new Scanner(System.in);
^
0_0_37017214_14521\Main.java:7: 错误: 需要class, interface或enum
while (scanner.hasNext()) {
^
0_0_37017214_14521\Main.java:9: 错误: 需要class, interface或enum
if (a>=90&&a<=100) {
^
0_0_37017214_14521\Main.java:11: 错误: 需要class, interface或enum
}else if (a<90&&a>=80) {
^
0_0_37017214_14521\Main.java:13: 错误: 需要class, interface或enum
} else if (a<80&&a>=70) {
^
0_0_37017214_14521\Main.java:16: 错误: 需要class, interface或enum
}else if (a<70&&a>=60) {
^
0_0_37017214_14521\Main.java:19: 错误: 需要class, interface或enum
}else if (a<60&&a>=0) {
^
0_0_37017214_14521\Main.java:21: 错误: 需要class, interface或enum
}else {
^
0_0_37017214_14521\Main.java:23: 错误: 需要class, interface或enum
}
^
11 个错误
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